Inelastic collapse of perfectly inelastic particles

Topic N, Pöschel T (2019)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2019

Journal

Communications Physics Springer Nature

Book Volume: 2

Article Number: 85

Journal Issue: 85

DOI: 10.1038/s42005-019-0184-y

Abstract

One of the most intensively discussed subjects in the dynamics of dissipative hard sphere systems is the effect of inelastic collapse, where the entire kinetic energy of the relative motion of a set of particles is dissipated in finite time due to an infinite sequence of collisions. The known collapse scenarios imply two preconditions: inertia of the particles and at least some degree of elasticity. For completely inelastic particles, collapse scenarios degenerate to a single sticky contact. By considering the overdamped motion of a frictional particle along the steepest descent in a rigid landscape, we will show that there exist collapse scenarios even if neither of these preconditions hold true. By means of numerical simulations we show that such collapses are no rare events due to particular particle shape and/or initial conditions and, thus, may lead to serious problems in article simulations.

Authors with CRIS profile

Nikola Topic Lehrstuhl für Multiscale Simulation of Particulate Systems Thorsten Pöschel Lehrstuhl für Multiscale Simulation of Particulate Systems

Additional Organisation(s)

Graduiertenkolleg 2423 Skalenübergreifende Bruchvorgänge: Integration von Mechanik, Materialwissenschaften, Mathematik, Chemie und Physik

How to cite

APA:

Topic, N., & Pöschel, T. (2019). Inelastic collapse of perfectly inelastic particles. Communications Physics, 2(85). https://doi.org/10.1038/s42005-019-0184-y

MLA:

Topic, Nikola, and Thorsten Pöschel. "Inelastic collapse of perfectly inelastic particles." Communications Physics 2.85 (2019).

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